US Gallons to Cubic Feet Converter
1 US gallon ≈ 0.133680556 cubic feet
About 17% smaller than the imperial gallon used in the UK.
1 US gallon equals 0.133681 cubic feet
How to convert US gallons to cubic feet
Choose the named US, Imperial or metric unit before converting a recipe or container size. A US liquid gallon is 3.785411784 L; an Imperial gallon is 4.54609 L. Volume alone cannot give ingredient mass without density.
ft³ = gal × 0.1336805556One US gallon is 0.1336805556 cubic feet, so a single multiplication converts any value.
1.33681 ft³ ≈ 10 × 0.1336805556About 17% smaller than the imperial gallon used in the UK.
US gallons to cubic feet conversion table
Common values in US gallons, converted to cubic feet.
| US gallons (gal) | Cubic feet (ft³) |
|---|---|
| 1 | 0.13368056 |
| 2 | 0.26736111 |
| 3 | 0.40104167 |
| 4 | 0.53472222 |
| 5 | 0.66840278 |
| 10 | 1.3368056 |
| 20 | 2.6736111 |
| 25 | 3.3420139 |
| 50 | 6.6840278 |
| 100 | 13.368056 |
| 250 | 33.420139 |
| 500 | 66.840278 |
| 1,000 | 133.68056 |
About these units
US gallongal
The US liquid gallon: exactly 231 cubic inches, or 3.785411784 litres.
cubic footft³
A cube one foot on each side. Used for appliance capacity and freight volume.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.